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Finding the Fourth Proportional to 78,802.97, 108,743.65 and 44,819.71

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Solution

The fourth proportional to 78,802.97, 108,743.65 and 44,819.71 is: 61,848.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,802.97 : 108,743.65 = 44,819.71 : x
  2. Step 2: Convert to fraction form
    78,802.97/108,743.65 = 44,819.71/x
  3. Step 3: Cross multiply
    78,802.97x = 108,743.65 × 44,819.71
  4. Step 4: Simplify right side
    78,802.97x = 4,873,858,473.43
  5. Step 5: Solve for x
    x = 4,873,858,473.43/78,802.97
  6. Step 6: Final answer
    x = 61,848.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.